The effect of air-gaping behaviour on extrapallial fluid pH in the tropical oyster Crassostrea rhizophorae

Step in Time: Biomineralisation of Bivalve’s Shell

“…When the cockle M. mercenaria closes its valves, the pH decreases and the Ca 2+ concentration increases within 15 minutes (Crenshaw, 1972). The same observation has been made in the case of the tropical oyster C. rhizophorae (Littlewood and Young, 1994). At high tide, valves open and metabolism becomes aerobic again.…”

“…This has been interpreted as a phase of decalcification; calcium ions integrated into the shell are re-solubilised into the EPF. This hypothesis is sustained by analogous observations made in the EPF of multiple bivalve species such as Mercenaria mercenaria and Crassostrea rhizophorae (Crenshaw, 1972;Littlewood and Young, 1994). When the cockle M. mercenaria closes its valves, the pH decreases and the Ca 2+ concentration increases within 15 minutes (Crenshaw, 1972).…”

Step in Time: Biomineralisation of Bivalve’s Shell

“…When the cockle M. mercenaria closes its valves, the pH decreases and the Ca 2+ concentration increases within 15 minutes (Crenshaw, 1972). The same observation has been made in the case of the tropical oyster C. rhizophorae (Littlewood and Young, 1994). At high tide, valves open and metabolism becomes aerobic again.…”

“…This has been interpreted as a phase of decalcification; calcium ions integrated into the shell are re-solubilised into the EPF. This hypothesis is sustained by analogous observations made in the EPF of multiple bivalve species such as Mercenaria mercenaria and Crassostrea rhizophorae (Crenshaw, 1972;Littlewood and Young, 1994). When the cockle M. mercenaria closes its valves, the pH decreases and the Ca 2+ concentration increases within 15 minutes (Crenshaw, 1972).…”

A novel nitrogen concentrating mechanism in the coral-algae symbiosome

“…2B). This mechanism is known as "NH4 + acid-trapping, and is well-documented in diverse excretory epithelia from humans (26), teleost fishes (41), cephalopod and bivalve mollusks (40,53), and crustaceans [reviewed in (31), (26,40,41,53,54)]. Moreover, NH4 + is the alga's preferred nitrogen source (15), so algal NH4 + uptake will ensure the continuous conversion of NH3 into NH4 + in the symbiosome, which in turn will maintain NH3 diffusion from the host cytosol.…”

The genes expression difference between winged and wingless bird cherry-oat aphid Rhopalosiphum padi based on transcriptomic data

“…Biogenic amines are small molecules synthesized from amino acids within neurons of the central nervous system. They are an integral part of the neuroendocrine system 32 . Biogenic amine signaling is of particular interest with respect to polyphenisms, as it plays a causal role in the phase polyphenism induced by crowding in locusts and other insects in response to stressful environmental cues 33–36 .…”

Step in Time: Biomineralisation of Bivalve’s Shell

“…When the cockle M. mercenaria closes its valves, the pH decreases and the Ca 2+ concentration increases within 15 minutes (Crenshaw, 1972). The same observation has been made in the case of the tropical oyster C. rhizophorae (Littlewood and Young, 1994). At high tide, valves open and metabolism becomes aerobic again.…”

“…This has been interpreted as a phase of decalcification; calcium ions integrated into the shell are re-solubilised into the EPF. This hypothesis is sustained by analogous observations made in the EPF of multiple bivalve species such as Mercenaria mercenaria and Crassostrea rhizophorae (Crenshaw, 1972;Littlewood and Young, 1994). When the cockle M. mercenaria closes its valves, the pH decreases and the Ca 2+ concentration increases within 15 minutes (Crenshaw, 1972).…”

A novel nitrogen concentrating mechanism in the coral-algae symbiosome

“…2B). This mechanism is known as "NH4 + acid-trapping, and is well-documented in diverse excretory epithelia from humans (26), teleost fishes (41), cephalopod and bivalve mollusks (40,53), and crustaceans [reviewed in (31), (26,40,41,53,54)]. Moreover, NH4 + is the alga's preferred nitrogen source (15), so algal NH4 + uptake will ensure the continuous conversion of NH3 into NH4 + in the symbiosome, which in turn will maintain NH3 diffusion from the host cytosol.…”

The genes expression difference between winged and wingless bird cherry-oat aphid Rhopalosiphum padi based on transcriptomic data

“…Biogenic amines are small molecules synthesized from amino acids within neurons of the central nervous system. They are an integral part of the neuroendocrine system 32 . Biogenic amine signaling is of particular interest with respect to polyphenisms, as it plays a causal role in the phase polyphenism induced by crowding in locusts and other insects in response to stressful environmental cues 33–36 .…”

Step in Time: Biomineralisation of Bivalve’s Shell

“…When the cockle M. mercenaria closes its valves, the pH decreases and the Ca 2+ concentration increases within 15 minutes (Crenshaw, 1972). The same observation has been made in the case of the tropical oyster C. rhizophorae (Littlewood and Young, 1994). At high tide, valves open and metabolism becomes aerobic again.…”

“…This has been interpreted as a phase of decalcification; calcium ions integrated into the shell are re-solubilised into the EPF. This hypothesis is sustained by analogous observations made in the EPF of multiple bivalve species such as Mercenaria mercenaria and Crassostrea rhizophorae (Crenshaw, 1972;Littlewood and Young, 1994). When the cockle M. mercenaria closes its valves, the pH decreases and the Ca 2+ concentration increases within 15 minutes (Crenshaw, 1972).…”

A novel nitrogen concentrating mechanism in the coral-algae symbiosome

“…2B). This mechanism is known as "NH4 + acid-trapping, and is well-documented in diverse excretory epithelia from humans (26), teleost fishes (41), cephalopod and bivalve mollusks (40,53), and crustaceans [reviewed in (31), (26,40,41,53,54)]. Moreover, NH4 + is the alga's preferred nitrogen source (15), so algal NH4 + uptake will ensure the continuous conversion of NH3 into NH4 + in the symbiosome, which in turn will maintain NH3 diffusion from the host cytosol.…”

The genes expression difference between winged and wingless bird cherry-oat aphid Rhopalosiphum padi based on transcriptomic data

“…Biogenic amines are small molecules synthesized from amino acids within neurons of the central nervous system. They are an integral part of the neuroendocrine system 32 . Biogenic amine signaling is of particular interest with respect to polyphenisms, as it plays a causal role in the phase polyphenism induced by crowding in locusts and other insects in response to stressful environmental cues 33–36 .…”